// sablonul costructor
public class NutritionFacts {
  private final int servingSize; // (ml) necesar
  private final int servings;     // (per container) necesar
  private final int calories;    // (g) optional
  private final int fat;         // (mg) optional
  private final int sodium;       // (g) optional
  private final int carbohydrate; // (g) optional

 public NutritionFacts(int servingSize, int servings){
   this(servingSize, servings, 0);
 }
public NutritionFacts(int servingSize, int servings, int calories){
   this(servingSize, servings, calories, 0);
}
public NutritionFacts(int servingSize, int servings, int calories, int fat){
   this(servingSize, servings, calories, fat, 0);
 }
public NutritionFacts(int servingSize, int servings, int calories, int fat, int sodium) {
   this(servingSize, servings, calories, fat, sodium, 0);
 }
public NutritionFacts(int servingSize, int servings, int calories, int fat, int sodium, int carbohydrate){
   this.servingSize = servingSize;
   this.servings = servings;
   this.calories = calories;
   this.fat = fat;
   this.sodium = sodium;
   this.carbohydrate = carbohydrate;
 }
}
